Hi Robin,
On Fri, Jan 27, 2017 at 6:50 PM, Robin Murphy wrote:
> On 27/01/17 15:34, Geert Uytterhoeven wrote:
>> Add helpers for allocating physically contiguous DMA buffers to the
>> generic IOMMU DMA code. This can be useful when two or more devices
>> with different memory requirements are in
Add support for allocating physically contiguous DMA buffers on arm64
systems with an IOMMU. This can be useful when two or more devices
with different memory requirements are involved in buffer sharing.
Note that as this uses the CMA allocator, setting the
DMA_ATTR_FORCE_CONTIGUOUS attribute has
Currently, the IPMMU/VMSA driver supports 32-bit I/O Virtual Addresses
only, and thus sets io_pgtable_cfg.ias = 32. However, it doesn't force
a 32-bit IOVA space through the IOMMU Domain Geometry.
Hence if a device (e.g. SYS-DMAC) rightfully configures a 40-bit DMA
mask, it will still be handed o
On Mon, Jan 30, 2017 at 09:39:52AM -0800, Ashok Raj wrote:
> From: CQ Tang
>
> Some of the macros are incorrect with wrong bit-shifts resulting in picking
> the incorrect invalidation granularity. Incorrect Source-ID in extended
> devtlb invalidation caused device side errors.
>
> To: Joerg Roed
On Mon, Jan 30, 2017 at 07:11:11PM -0800, David Dillow wrote:
> Fixes: 3269ee0bd668 ("intel-iommu: Fix leaks in pagetable freeing")
> Reviewed-by: Benjamin Serebrin
> Signed-off-by: David Dillow
> ---
> drivers/iommu/intel-iommu.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Applied,
Hi Robin,
>> I gave the whole patch set a try on ThunderX. really_probe() is failing
>> on dma_configure()->of_pci_iommu_init() for each PCI device.
>
> When you say "failing", do you mean cleanly, or with a crash? I've
> managed to hit __of_match_node() dereferencing NULL from
